It is difficult for any tea to achieve the effect of cleaning blood vessels, the main beneficial components in tea are tea polyphenols. Tea polyphenols have a certain antioxidant effect as well as the function of protecting the lining of blood vessels, but its role is weak, and is not enough to clean up the harmful substances in the blood vessels. So the protection of blood vessels should still be caused by the causes of vascular atherosclerosis, such as smoking, hypertension, high blood pressure, high blood sugar and obesity, the above causes under strict control and a healthy diet in life, it is recommended that reference to the Mediterranean Diet (vegetables and fruits, fish, grains and cereals, legumes and olive oil-based dietary style), and usually should be active in physical exercise, the only way to better protect blood vessels.